{"id":7578,"date":"2025-01-11T06:57:16","date_gmt":"2025-01-11T06:57:16","guid":{"rendered":"https:\/\/premiumalu.com\/?post_type=product&#038;p=7578"},"modified":"2026-07-07T08:32:48","modified_gmt":"2026-07-07T08:32:48","slug":"%d0%b0%d0%bb%d1%8e%d0%bc%d0%b8%d0%bd%d0%b8%d0%b5%d0%b2%d1%8b%d0%b9-%d1%81%d0%bf%d0%bb%d0%b0%d0%b2-2618","status":"publish","type":"product","link":"https:\/\/premiumalu.com\/ru\/%d0%bf%d1%80%d0%be%d0%b4%d1%83%d0%ba%d1%82\/%d0%b0%d0%bb%d1%8e%d0%bc%d0%b8%d0%bd%d0%b8%d0%b5%d0%b2%d1%8b%d0%b9-%d1%81%d0%bf%d0%bb%d0%b0%d0%b2-2618\/","title":{"rendered":"\u0410\u043b\u044e\u043c\u0438\u043d\u0438\u0435\u0432\u044b\u0439 \u0441\u043f\u043b\u0430\u0432 2618"},"content":{"rendered":"<h2>What Is 2618 Aluminum Alloy?<\/h2>\n<p>2618 aluminum alloy (UNS A92618) is a heat-treatable 2000 series wrought aluminum alloy designed specifically for elevated-temperature service. Its composition is distinguished by the deliberate addition of nickel (Ni) and a higher iron (Fe) content \u2014 together forming stable Ni-Fe intermetallic compounds (Al\u2089FeNi) that resist coarsening at high temperatures. This dispersion hardening mechanism is what sets 2618 apart from other 2xxx alloys such as 2014 and 2024.<\/p>\n<p>The primary alloying elements are copper (1.9\u20132.7%), magnesium (1.3\u20131.8%), and nickel (0.9\u20131.2%), with iron (0.9\u20131.3%) contributing to the high-temperature strengthening phase. In the T61 temper (solution heat-treated and artificially aged), 2618 maintains useful mechanical strength at service temperatures where conventional aluminum alloys would rapidly soften \u2014 making it the material of choice for aerospace pistons, high-speed compressor rotors, plastic injection molds, and forged automotive connecting rods.<\/p>\n<p>2618 is typically shaped by hot forging, but is also available as extruded bar, rolled plate, and drawn tube. Its high-temperature stability comes with trade-offs: it has only fair corrosion resistance (below 5xxx and 6xxx series levels), is difficult to weld by conventional fusion methods due to hot-cracking sensitivity, and should be evaluated carefully for applications requiring anodized surface finishes. The alloy is covered under AMS 4132 and ASTM B247 (forging stock and forgings), with additional coverage under EN 573-3 \/ EN 4613 for European procurement.<\/p>\n<h2>Available 2618 Aluminum Products<\/h2>\n<p>Linsy supplies 2618 aluminum alloy in a range of standard and custom product forms. Length, width, diameter, and dimensional tolerances can be tailored to your project requirements.<\/p>\n<h3>2618 Aluminum Sheet &amp; Coil<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u0424\u043e\u0440\u043c\u0430<\/th>\n<th>\u0422\u0435\u043c\u043f\u0435\u0440<\/th>\n<th>\u0422\u043e\u043b\u0449\u0438\u043d\u0430 (\u043c\u043c)<\/th>\n<th>\u0428\u0438\u0440\u0438\u043d\u0430 (\u043c\u043c)<\/th>\n<th>\u0414\u043b\u0438\u043d\u0430 (\u043c\u043c)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>2618 Sheet \/ Coil<\/td>\n<td>O, T4, T61, T651<\/td>\n<td>0.3 \u2013 6.0<\/td>\n<td>500 \u2013 2600<\/td>\n<td>500 \u2013 16000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>2618 Aluminum Plate<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u0424\u043e\u0440\u043c\u0430<\/th>\n<th>\u0422\u0435\u043c\u043f\u0435\u0440<\/th>\n<th>\u0422\u043e\u043b\u0449\u0438\u043d\u0430 (\u043c\u043c)<\/th>\n<th>\u0428\u0438\u0440\u0438\u043d\u0430 (\u043c\u043c)<\/th>\n<th>\u0414\u043b\u0438\u043d\u0430 (\u043c\u043c)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>2618 Plate<\/td>\n<td>O, T61, T651<\/td>\n<td>6.0 \u2013 200<\/td>\n<td>500 \u2013 2600<\/td>\n<td>500 \u2013 12000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>2618 Aluminum Bar<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u0424\u043e\u0440\u043c\u0430<\/th>\n<th>\u0422\u0435\u043c\u043f\u0435\u0440<\/th>\n<th>\u0414\u0438\u0430\u043c\u0435\u0442\u0440 (\u043c\u043c)<\/th>\n<th>\u0414\u043b\u0438\u043d\u0430 (\u043c\u043c)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>2618 Bar (Round)<\/td>\n<td>T6, T61, T6511<\/td>\n<td>10 \u2013 500<\/td>\n<td>1000 \u2013 6000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>2618 Aluminum Tube<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u0424\u043e\u0440\u043c\u0430<\/th>\n<th>\u0422\u0435\u043c\u043f\u0435\u0440<\/th>\n<th>OD (\u043c\u043c)<\/th>\n<th>ID (mm)<\/th>\n<th>\u0414\u043b\u0438\u043d\u0430 (\u043c\u043c)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>2618 Tube<\/td>\n<td>T6, T61, T6511<\/td>\n<td>10 \u2013 500<\/td>\n<td>5 \u2013 450<\/td>\n<td>1000 \u2013 6000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>2618 Aluminum Forging Stock &amp; Forgings<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u0424\u043e\u0440\u043c\u0430<\/th>\n<th>\u0422\u0435\u043c\u043f\u0435\u0440<\/th>\n<th>\u0414\u0438\u0430\u043c\u0435\u0442\u0440 (\u043c\u043c)<\/th>\n<th>\u0414\u043b\u0438\u043d\u0430 (\u043c\u043c)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>2618 Forging Stock<\/td>\n<td>O, T61<\/td>\n<td>20 \u2013 600<\/td>\n<td>500 \u2013 6000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>2618 Aluminum Wire<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u0424\u043e\u0440\u043c\u0430<\/th>\n<th>\u0422\u0435\u043c\u043f\u0435\u0440<\/th>\n<th>\u0414\u0438\u0430\u043c\u0435\u0442\u0440 (\u043c\u043c)<\/th>\n<th>Weight \/ Coil<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>2618 Wire<\/td>\n<td>T61, T6511<\/td>\n<td>0.8 \u2013 30<\/td>\n<td>\u041c\u0438\u043d. 50 \u043a\u0433<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Custom Dimensions &amp; Non-Standard Forms<\/h3>\n<p>Length, width, diameter, and dimensional tolerances can be customized. Contact us with your drawing or specification for 2618 aluminum profiles, custom forging preforms, or engineered plates with tight compositional controls.<\/p>\n<h2>2618 Aluminum Chemical Composition<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u042d\u043b\u0435\u043c\u0435\u043d\u0442<\/th>\n<th>Composition (wt%)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u041c\u0435\u0434\u044c (Cu)<\/td>\n<td>1.9 \u2013 2.7<\/td>\n<\/tr>\n<tr>\n<td>\u041c\u0430\u0433\u043d\u0438\u0439 (Mg)<\/td>\n<td>1.3 \u2013 1.8<\/td>\n<\/tr>\n<tr>\n<td>\u041d\u0438\u043a\u0435\u043b\u044c (Ni)<\/td>\n<td>0.9 \u2013 1.2<\/td>\n<\/tr>\n<tr>\n<td>\u0416\u0435\u043b\u0435\u0437\u043e (Fe)<\/td>\n<td>0.9 \u2013 1.3<\/td>\n<\/tr>\n<tr>\n<td>\u041a\u0440\u0435\u043c\u043d\u0438\u0439 (Si)<\/td>\n<td>0.10 \u2013 0.25<\/td>\n<\/tr>\n<tr>\n<td>\u0422\u0438\u0442\u0430\u043d (Ti)<\/td>\n<td>0.04 \u2013 0.10<\/td>\n<\/tr>\n<tr>\n<td>\u041c\u0430\u0440\u0433\u0430\u043d\u0435\u0446 (Mn)<\/td>\n<td>0.15 \u041c\u0430\u043a\u0441<\/td>\n<\/tr>\n<tr>\n<td>\u0425\u0440\u043e\u043c (Cr)<\/td>\n<td>0.10 \u041c\u0430\u043a\u0441<\/td>\n<\/tr>\n<tr>\n<td>\u0426\u0438\u043d\u043a (Zn)<\/td>\n<td>0.15 \u041c\u0430\u043a\u0441<\/td>\n<\/tr>\n<tr>\n<td>Others, Each<\/td>\n<td>0,05 \u041c\u0430\u043a\u0441<\/td>\n<\/tr>\n<tr>\n<td>Others, Total<\/td>\n<td>0.15 \u041c\u0430\u043a\u0441<\/td>\n<\/tr>\n<tr>\n<td>\u0410\u043b\u044e\u043c\u0438\u043d\u0438\u0439 (Al)<\/td>\n<td>\u0411\u0430\u043b\u0430\u043d\u0441<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Mechanical Properties of 2618 Aluminum by Temper<\/h2>\n<p>Values below are typical for 2618 aluminum in common tempers. Actual properties depend on product form, section thickness, and processing history. Contact Linsy for specification-grade data for your specific order.<\/p>\n<h3>2618-O (Annealed)<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u041d\u0435\u0434\u0432\u0438\u0436\u0438\u043c\u043e\u0441\u0442\u044c<\/th>\n<th>\u0422\u0438\u043f\u0438\u0447\u043d\u043e\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u041f\u0440\u043e\u0447\u043d\u043e\u0441\u0442\u044c \u043d\u0430 \u0440\u0430\u0437\u0440\u044b\u0432, \u043f\u0440\u0435\u0434\u0435\u043b\u044c\u043d\u0430\u044f<\/td>\n<td>~200 \u041c\u041f\u0430<\/td>\n<\/tr>\n<tr>\n<td>Tensile Strength, Yield (0.2% offset)<\/td>\n<td>~100 MPa<\/td>\n<\/tr>\n<tr>\n<td>\u0423\u0434\u043b\u0438\u043d\u0435\u043d\u0438\u0435<\/td>\n<td>~14%<\/td>\n<\/tr>\n<tr>\n<td>\u0422\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c (HB)<\/td>\n<td>~55<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>2618-T61 (Solution Heat-Treated &amp; Artificially Aged)<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u041d\u0435\u0434\u0432\u0438\u0436\u0438\u043c\u043e\u0441\u0442\u044c<\/th>\n<th>\u0422\u0438\u043f\u0438\u0447\u043d\u043e\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u041f\u0440\u043e\u0447\u043d\u043e\u0441\u0442\u044c \u043d\u0430 \u0440\u0430\u0437\u0440\u044b\u0432, \u043f\u0440\u0435\u0434\u0435\u043b\u044c\u043d\u0430\u044f<\/td>\n<td>\u2265 400 \u041c\u041f\u0430<\/td>\n<\/tr>\n<tr>\n<td>Tensile Strength, Yield (0.2% offset)<\/td>\n<td>\u2265 310 MPa<\/td>\n<\/tr>\n<tr>\n<td>\u0423\u0434\u043b\u0438\u043d\u0435\u043d\u0438\u0435<\/td>\n<td>~8%<\/td>\n<\/tr>\n<tr>\n<td>\u0422\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c (HB)<\/td>\n<td>~115<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>2618-T6511 (Solution Heat-Treated, Stress-Relieved &amp; Artificially Aged)<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u041d\u0435\u0434\u0432\u0438\u0436\u0438\u043c\u043e\u0441\u0442\u044c<\/th>\n<th>\u0422\u0438\u043f\u0438\u0447\u043d\u043e\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u041f\u0440\u043e\u0447\u043d\u043e\u0441\u0442\u044c \u043d\u0430 \u0440\u0430\u0437\u0440\u044b\u0432, \u043f\u0440\u0435\u0434\u0435\u043b\u044c\u043d\u0430\u044f<\/td>\n<td>\u2265 400 \u041c\u041f\u0430<\/td>\n<\/tr>\n<tr>\n<td>Tensile Strength, Yield (0.2% offset)<\/td>\n<td>\u2265 310 MPa<\/td>\n<\/tr>\n<tr>\n<td>\u0423\u0434\u043b\u0438\u043d\u0435\u043d\u0438\u0435<\/td>\n<td>~8%<\/td>\n<\/tr>\n<tr>\n<td>\u0422\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c (HB)<\/td>\n<td>~115<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Temper Selection Guide for 2618 Aluminum<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u0422\u0435\u043c\u043f\u0435\u0440<\/th>\n<th>\u041b\u0443\u0447\u0448\u0435\u0435 \u0434\u043b\u044f<\/th>\n<th>\u0422\u0438\u043f\u043e\u0432\u044b\u0435 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>2618-O<\/td>\n<td>Starting condition for forging, re-machining before heat treatment, or applications where maximum ductility is needed.<\/td>\n<td>Forging blanks, forming operations, machining stock prior to precipitation hardening<\/td>\n<\/tr>\n<tr>\n<td>2618-T61<\/td>\n<td>Forged parts requiring peak high-temperature strength. Solution heat-treated and artificially aged at an elevated temperature compared to standard T6.<\/td>\n<td>Aerospace pistons, compressor rotors, high-temperature structural forgings, plastic injection molds<\/td>\n<\/tr>\n<tr>\n<td>2618-T6511<\/td>\n<td>Extruded bars and tubes requiring peak strength with stress relief for dimensional stability during machining.<\/td>\n<td>Precision-machined components, automotive connecting rods, engine components requiring tight tolerances<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Standards &amp; Equivalent Designations<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u0421\u0442\u0430\u043d\u0434\u0430\u0440\u0442<\/th>\n<th>\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>UNS<\/td>\n<td>A92618<\/td>\n<\/tr>\n<tr>\n<td>EN \/ European<\/td>\n<td>EN AW-2618 \/ AlCu2Mg1.5Ni<\/td>\n<\/tr>\n<tr>\n<td>AMS (Aerospace Material Specification)<\/td>\n<td>AMS 4132 (forgings)<\/td>\n<\/tr>\n<tr>\n<td>ASTM<\/td>\n<td>ASTM B247 (forging stock and forgings)<\/td>\n<\/tr>\n<tr>\n<td>EN Standard for Forgings<\/td>\n<td>EN 4613<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Key Characteristics of 2618 Aluminum<\/h2>\n<h3>High-Temperature Strength Retention<\/h3>\n<p>The defining characteristic of 2618 aluminum is its ability to retain mechanical strength at temperatures up to approximately 250 \u00b0C (480 \u00b0F). Unlike standard age-hardening aluminum alloys that rapidly over-age and lose strength above 150 \u00b0C, the Ni-Fe intermetallic dispersion in 2618 resists coarsening under thermal cycling \u2014 making 2618 the alloy of choice for pistons, compressor rotors, and other heat-exposed aerospace and automotive components.<\/p>\n<h3>Forgeability &amp; Machinability<\/h3>\n<p>2618 was designed for hot forging and delivers excellent forgeability in the solution-annealed (O-temper) condition. Post-forging, 2618 reaches its full strength through solution heat treatment followed by artificial aging (T61 temper). In the T6\/T61 condition, 2618 offers good machinability comparable to other 2xxx series alloys \u2014 producing well-broken chips with carbide tooling under standard machining parameters.<\/p>\n<h3>\u0421\u0432\u0430\u0440\u0438\u0432\u0430\u0435\u043c\u043e\u0441\u0442\u044c<\/h3>\n<p>As with most 2000 series aluminum alloys, 2618 has limited weldability. The high copper content makes it susceptible to hot cracking and solidification defects during fusion welding (TIG, MIG). Arc welding is generally not recommended for structural applications. Friction stir welding may be viable in controlled production environments. For most assembly applications, mechanical fastening or press-fit integration is the preferred joining method.<\/p>\n<h3>\u0423\u0441\u0442\u043e\u0439\u0447\u0438\u0432\u043e\u0441\u0442\u044c \u043a \u043a\u043e\u0440\u0440\u043e\u0437\u0438\u0438<\/h3>\n<p>2618 aluminum has only fair corrosion resistance \u2014 below that of 5xxx and 6xxx series alloys \u2014 due to its high copper content. It is not recommended for marine or chemical exposure environments without protective coatings. When corrosion protection is required, hard anodizing or conversion coating should be evaluated, though anodizing response is moderate due to the alloy&#8217;s intermetallic phases.<\/p>\n<h2>Common Applications of 2618 Aluminum<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u041f\u0440\u043e\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u043e\u0441\u0442\u044c<\/th>\n<th>\u0422\u0438\u043f\u043e\u0432\u044b\u0435 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f<\/th>\n<th>Why 2618 Is Used<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0410\u044d\u0440\u043e\u043a\u043e\u0441\u043c\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u043f\u0440\u043e\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u043e\u0441\u0442\u044c<\/td>\n<td>Engine pistons, compressor impellers, turbine blades, high-temperature structural brackets, helicopter rotor components<\/td>\n<td>Maintains strength after prolonged exposure to operating temperatures up to 250 \u00b0C; AMS 4132 qualified for aerospace forging.<\/td>\n<\/tr>\n<tr>\n<td>Automotive &amp; Motorsport<\/td>\n<td>High-performance pistons, connecting rods, turbocharger compressor wheels, cylinder heads for racing engines<\/td>\n<td>Excellent strength-to-weight ratio under thermal cycling; widely used in Formula 1, WRC, and other performance engines.<\/td>\n<\/tr>\n<tr>\n<td>\u0424\u043e\u0440\u043c\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u043b\u0430\u0441\u0442\u043c\u0430\u0441\u0441<\/td>\n<td>Injection mold cores and cavities, blow mold tooling, thermoforming tools<\/td>\n<td>High thermal conductivity with good elevated-temperature strength; faster cycle times compared to steel tooling.<\/td>\n<\/tr>\n<tr>\n<td>Oil &amp; Gas \/ Power Generation<\/td>\n<td>Compressor components, high-speed rotating parts, high-temperature seals<\/td>\n<td>Reliable performance under sustained elevated temperatures without creep-induced dimensional changes.<\/td>\n<\/tr>\n<tr>\n<td>General Industrial Engineering<\/td>\n<td>High-temperature jigs and fixtures, heat exchanger components, furnace parts<\/td>\n<td>Cost-effective aluminum alternative to titanium where operating temperature is below 250 \u00b0C.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u041f\u0440\u0438\u043c\u0435\u0447\u0430\u043d\u0438\u044f \u043f\u043e \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u0438 \u043e\u0442\u0434\u0435\u043b\u043a\u0435 \u043f\u043e\u0432\u0435\u0440\u0445\u043d\u043e\u0441\u0442\u0438<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u041f\u0440\u043e\u0446\u0435\u0441\u0441<\/th>\n<th>Suitability<\/th>\n<th>\u041f\u0440\u0438\u043c\u0435\u0447\u0430\u043d\u0438\u044f<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>CNC Machining<\/td>\n<td>\u0425\u043e\u0440\u043e\u0448\u043e<\/td>\n<td>Performs well with carbide tooling. Recommend positive rake angles and adequate coolant delivery. T6511 temper provides best dimensional stability for precision machining.<\/td>\n<\/tr>\n<tr>\n<td>Hot Forging<\/td>\n<td>\u041f\u0440\u0435\u0432\u043e\u0441\u0445\u043e\u0434\u043d\u043e<\/td>\n<td>This is the primary shaping method for 2618. Forge at 380\u2013450 \u00b0C. Solution treatment and aging follow forging to achieve T61 temper properties.<\/td>\n<\/tr>\n<tr>\n<td>Welding (Arc \/ Fusion)<\/td>\n<td>Not Recommended<\/td>\n<td>High copper content causes hot cracking sensitivity. Structural welds should be avoided. Friction stir welding may be assessed on a case-by-case basis.<\/td>\n<\/tr>\n<tr>\n<td>\u0410\u043d\u043e\u0434\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435<\/td>\n<td>\u0423\u043c\u0435\u0440\u0435\u043d\u043d\u044b\u0439<\/td>\n<td>Intermetallic phases (Ni-Fe particles) can cause uneven oxide layer formation. Hard anodizing is possible but may produce a darker, less-uniform appearance than 6061 anodizing.<\/td>\n<\/tr>\n<tr>\n<td>Polishing<\/td>\n<td>\u0425\u043e\u0440\u043e\u0448\u043e<\/td>\n<td>Mechanical polishing achievable. Surface finish can be maintained in non-corrosive environments with appropriate protective coating.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u0414\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u0430\u0446\u0438\u044f \u043f\u043e \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0443 \u0438 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044c \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0430<\/h2>\n<p>Every 2618 aluminum order from Linsy includes a Mill Test Certificate (MTC) documenting chemical composition and mechanical properties for your specific batch. Additional documentation and testing services are available on request:<\/p>\n<ul>\n<li><strong>MTC Report<\/strong> \u2014 Included with every order. Details chemical composition, mechanical properties, and temper condition for your specific production lot.<\/li>\n<li><strong>SGS Testing<\/strong> \u2014 Third-party test reports available on request, covering chemical composition, mechanical properties, ultrasonic inspection (for thick plates), RoHS\/REACH compliance, and dimensional verification.<\/li>\n<li><strong>Management System Certifications<\/strong> \u2014 Linsy holds ISO 9001, ISO 14001, and ISO 45001 certifications covering quality management, environmental management, and occupational health and safety respectively.<\/li>\n<\/ul>\n<h2>2618 vs 2024 Aluminum \u2014 Key Differences<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u041d\u0435\u0434\u0432\u0438\u0436\u0438\u043c\u043e\u0441\u0442\u044c<\/th>\n<th>2618<\/th>\n<th>2024<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u041f\u0435\u0440\u0432\u0438\u0447\u043d\u044b\u0435 \u043b\u0435\u0433\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u044b<\/td>\n<td>Cu + Mg + Ni + Fe<\/td>\n<td>Cu + Mg + Mn<\/td>\n<\/tr>\n<tr>\n<td>High-Temp Strength<\/td>\n<td>Excellent (retains strength up to ~250 \u00b0C)<\/td>\n<td>Limited (softens significantly above ~150 \u00b0C)<\/td>\n<\/tr>\n<tr>\n<td>Room-Temp Strength (T6)<\/td>\n<td>~400\u2013440 MPa UTS<\/td>\n<td>~470 MPa UTS<\/td>\n<\/tr>\n<tr>\n<td>Forgeability<\/td>\n<td>\u041f\u0440\u0435\u0432\u043e\u0441\u0445\u043e\u0434\u043d\u043e<\/td>\n<td>\u0425\u043e\u0440\u043e\u0448\u043e<\/td>\n<\/tr>\n<tr>\n<td>\u0423\u0441\u0442\u043e\u0439\u0447\u0438\u0432\u043e\u0441\u0442\u044c \u043a \u043a\u043e\u0440\u0440\u043e\u0437\u0438\u0438<\/td>\n<td>Fair (similar to 2024)<\/td>\n<td>Fair; often Alclad for protection<\/td>\n<\/tr>\n<tr>\n<td>\u0421\u0432\u0430\u0440\u0438\u0432\u0430\u0435\u043c\u043e\u0441\u0442\u044c<\/td>\n<td>Not recommended<\/td>\n<td>Not recommended<\/td>\n<\/tr>\n<tr>\n<td>\u0422\u0438\u043f\u0438\u0447\u043d\u043e\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435<\/td>\n<td>Pistons, compressor rotors, molds \u2014 hot applications<\/td>\n<td>Aircraft structures, fuselage skins, fittings \u2014 ambient\/high-strength applications<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>For a more detailed comparison covering mechanical properties, cost, and availability across product forms, <a href=\"https:\/\/premiumalu.com\/ru\/%d1%81%d0%be%d0%b2%d0%b5%d1%82%d1%8b-%d1%8d%d0%ba%d1%81%d0%bf%d0%b5%d1%80%d1%82%d0%be%d0%b2-%d0%b4%d0%bb%d1%8f-%d1%83%d1%81%d0%bf%d0%b5%d1%88%d0%bd%d0%be%d0%b9-%d1%80%d0%b0%d0%b1%d0%be%d1%82%d1%8b\/\">read our 2618 alloy guide<\/a>.<\/p>\n<h2>Why Choose Linsy for 2618 Aluminum<\/h2>\n<p>Linsy Aluminum is a Shenzhen-based aluminum factory with more than 20 years of industry experience, specializing in a full range of aluminum alloys across the 1000\u20138000 series. We supply 2618 aluminum in multiple product forms \u2014 sheet, plate, bar, tube, forging stock, and wire \u2014 with standard and custom sizes to match project specifications.<\/p>\n<p><strong>What sets Linsy apart for 2618 aluminum procurement:<\/strong><\/p>\n<ul>\n<li><strong>Multi-form supply from one source<\/strong> \u2014 Order 2618 sheet, plate, bar, and forging stock from a single supplier with consistent quality documentation.<\/li>\n<li><strong>Low-MOQ custom production<\/strong> \u2014 Need a non-stock thickness or custom forging preform in 2618? We support low-MOQ production with a typical lead time of 10\u201360 days, depending on specifications.<\/li>\n<li><strong>Broad inventory coverage<\/strong> \u2014 Standard 2618 specifications are available from stock for faster turnaround. Mixed-spec and project-based purchasing are welcome.<\/li>\n<li><strong>In-house processing<\/strong> \u2014 CNC machining, cutting, and surface finishing performed in-house, reducing coordination overhead and lead time.<\/li>\n<li><strong>Traceability built in<\/strong> \u2014 Every order ships with a factory-issued MTC report. SGS third-party testing is available on request for chemical composition, mechanical properties, ultrasonic inspection, and RoHS\/REACH compliance.<\/li>\n<li><strong>Certified quality systems<\/strong> \u2014 ISO 9001 for quality management, ISO 14001 for environmental management, and ISO 45001 for occupational health and safety.<\/li>\n<\/ul>\n<p>Contact us with your 2618 aluminum specification or drawing for a quote \u2014 our engineering team provides same-business-day response for standard inquiries.<\/p>\n<h2>\u0421\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u044b<\/h2>\n<ul>\n<li><a href=\"https:\/\/premiumalu.com\/ru\/%d1%81%d0%be%d0%b2%d0%b5%d1%82%d1%8b-%d1%8d%d0%ba%d1%81%d0%bf%d0%b5%d1%80%d1%82%d0%be%d0%b2-%d0%b4%d0%bb%d1%8f-%d1%83%d1%81%d0%bf%d0%b5%d1%88%d0%bd%d0%be%d0%b9-%d1%80%d0%b0%d0%b1%d0%be%d1%82%d1%8b\/\">\u041e\u0441\u0432\u043e\u0435\u043d\u0438\u0435 \u0430\u043b\u044e\u043c\u0438\u043d\u0438\u0435\u0432\u043e\u0433\u043e \u0441\u043f\u043b\u0430\u0432\u0430 2618: \u0421\u043e\u0432\u0435\u0442\u044b \u044d\u043a\u0441\u043f\u0435\u0440\u0442\u043e\u0432 \u0434\u043b\u044f \u0443\u0441\u043f\u0435\u0445\u0430<\/a> \u2014 Comprehensive guide covering 2618 properties, processing, and procurement considerations.<\/li>\n<\/ul>\n<h2>2618 Aluminum FAQ<\/h2>\n<h3>What is 2618 aluminum alloy used for?<\/h3>\n<p>2618 aluminum is primarily used for components that require high strength at elevated temperatures. Its most common applications include aerospace engine pistons, compressor rotors, automotive high-performance pistons and connecting rods, plastic injection mold tooling, and high-temperature jigs and fixtures. The alloy is specifically designed to maintain mechanical properties at service temperatures up to approximately 250 \u00b0C (480 \u00b0F).<\/p>\n<h3>How does 2618 differ from 2024 aluminum?<\/h3>\n<p>The key difference lies in high-temperature performance. 2618 contains nickel and higher iron to form stable Ni-Fe intermetallic compounds that resist thermal softening \u2014 giving 2618 excellent strength retention up to ~250 \u00b0C. 2024, while slightly stronger at room temperature (~470 MPa vs ~440 MPa UTS), loses strength significantly above ~150 \u00b0C. 2618 is preferred for hot applications (forged pistons, compressor parts); 2024 is preferred for ambient-temperature structural applications (aircraft skins, fittings).<\/p>\n<h3>What tempers are available for 2618 aluminum?<\/h3>\n<p>Linsy supplies 2618 aluminum in O (annealed \u2014 for forging blanks and machining before heat treatment), T61 (solution heat-treated and artificially aged \u2014 the standard temper for forged aerospace parts), and T6511 (solution heat-treated, stress-relieved, and artificially aged \u2014 preferred for extruded bar and tube requiring dimensional stability during machining). Contact us for availability of additional tempers or custom heat treatment specifications.<\/p>\n<h3>Can 2618 aluminum be welded?<\/h3>\n<p>Arc welding (TIG, MIG) of 2618 aluminum is generally not recommended for structural applications. The high copper content creates a susceptibility to hot cracking and solidification defects in the weld zone. If joining is required, mechanical fastening or press-fit integration is the preferred method. Friction stir welding may be feasible in controlled production environments and should be evaluated on a case-by-case basis.<\/p>\n<h3>What is the maximum service temperature for 2618 aluminum?<\/h3>\n<p>2618 aluminum retains useful mechanical properties at temperatures up to approximately 250 \u00b0C (480 \u00b0F). This is significantly higher than standard precipitation-hardened alloys such as 6061-T6 (~150 \u00b0C practical limit) or 2024-T3 (~120 \u00b0C). However, sustained exposure above 250 \u00b0C will eventually lead to microstructural coarsening and progressive strength loss. For the best combination of performance and service life, consult with Linsy&#8217;s engineering team on your specific operating temperature profile.<\/p>\n<h3>Does 2618 aluminum need anodizing for corrosion protection?<\/h3>\n<p>2618 has only fair corrosion resistance due to its high copper content. In corrosive or outdoor environments, protective surface treatment is recommended. Hard anodizing can provide a protective oxide layer, though the finish will typically be darker and less uniform than anodized 6061 due to 2618&#8217;s intermetallic constituents. For non-aesthetic applications, chemical conversion coating (chromate or non-chromate) may offer sufficient protection. In non-corrosive indoor or lubricated environments (e.g., engine internals), uncoated 2618 is commonly used.<\/p>\n<h3>Do you supply 2618 aluminum forging stock?<\/h3>\n<p>Yes. Linsy supplies 2618 aluminum forging stock in the O-temper condition, typically in bar or billet form with diameters from 20 mm to 600 mm. Forging stock can be cut to your specified length and supplied with MTC documentation. Contact us with your forging preform dimensions and target temper specification for a quote.<\/p>\n<h3>How long does it take to receive a custom 2618 aluminum order?<\/h3>\n<p>Standard 2618 aluminum specifications in stock can ship within days. For custom sizes, non-standard tempers, or specially machined parts, the typical lead time is 10\u201360 days depending on the alloy, dimensions, processing requirements, and order complexity. Linsy supports low-MOQ custom production for non-stock items, so you can order exactly what your project requires without excessive minimum quantities.<\/p>\n<h3>What quality documents do you provide with 2618 aluminum orders?<\/h3>\n<p>Every 2618 aluminum order from Linsy includes a Mill Test Certificate (MTC) that documents the chemical composition and mechanical properties of your specific production lot. Additional documentation available on request includes SGS test reports (chemical composition, mechanical properties, ultrasonic inspection for thick plate and forging stock, RoHS\/REACH compliance, and dimensional verification reports).<\/p>\n<h3>Is 2618 aluminum the same as AlCu2Mg1.5Ni?<\/h3>\n<p>Yes. AlCu2Mg1.5Ni is the European designation for 2618 aluminum alloy under the EN 573-3 naming convention. The designation refers to its primary alloying elements: aluminum-copper-magnesium-nickel. The UNS equivalent is A92618, and the alloy is also specified under AMS 4132 (forgings) and ASTM B247. All nomenclature refers to the same material.<\/p>\n<h2>\u041e\u0431\u0449\u0438\u0435 \u0432\u043e\u043f\u0440\u043e\u0441\u044b \u0438 \u043e\u0442\u0432\u0435\u0442\u044b \u043f\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u0438\u044e \u0437\u0430\u043a\u0430\u0437\u043e\u0432<\/h2>\n<h3>What is your Minimum Order Quantity (MOQ)?<\/h3>\n<p>Linsy supports both large-volume and low-MOQ orders. Standard specifications can be ordered in small quantities from stock. For custom specifications, we offer low-MOQ production to support project-based needs and prototyping. Contact us with your specification to confirm availability and minimum quantities for your specific 2618 aluminum requirements.<\/p>\n<h3>Do you provide samples?<\/h3>\n<p>Yes, samples are available for evaluation. Standard sample dimensions are provided free of charge; customer covers freight cost for shipping from our Shenzhen facility. Custom-dimension samples may involve a nominal preparation fee. Contact our team with your sample requirements.<\/p>\n<h3>What payment terms do you accept?<\/h3>\n<p>We accept T\/T (wire transfer) and L\/C (Letter of Credit). Standard payment terms are discussed during quotation. For new customer relationships, we offer flexible terms to help establish long-term supply partnerships.<\/p>\n<h3>Which countries do you ship to?<\/h3>\n<p>Linsy exports aluminum products to markets across Europe, North America, South Africa, Brazil, Singapore, Turkey, Japan, South Korea, and other regions. We arrange international freight with major carriers and can accommodate CIF, FOB, and EXW delivery terms based on your preference.<\/p>\n<h3>How can I get a quote for 2618 aluminum?<\/h3>\n<p>Send your specification \u2014 alloy, temper, product form, dimensions, and quantity \u2014 via our contact form or email. Our engineering team typically responds within one business day with pricing, availability, and lead time information.<\/p>","protected":false},"excerpt":{"rendered":"<p>2618 aluminum alloy (AlCu2Mg1.5Ni) is a heat-treatable 2000 series wrought aluminum alloy alloyed primarily with copper, magnesium, and nickel. It is specifically engineered for applications requiring high strength retention at elevated temperatures \u2014 a characteristic driven by its unique Ni-Fe intermetallic dispersion hardening. Known widely as the piston alloy, 2618 offers excellent forgeability, good machinability, and reliable mechanical stability up to approximately 250 \u00b0C (480 \u00b0F). Linsy supplies 2618 aluminum sheet, plate, bar, tube, forging stock, and wire in tempers O, T6, T61, and T6511, with custom sizes, processing support, and MTC reports available.<\/p>\n<p>\n<strong>\u0414\u043e\u0441\u0442\u0443\u043f\u043d\u044b\u0435 \u0444\u043e\u0440\u043c\u044b:<\/strong> sheet \/ plate \/ bar \/ tube \/ forging stock \/ wire<br \/>\n<strong>\u0420\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u043d\u044b\u0435 \u0442\u0438\u043f\u044b \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0430:<\/strong> O \/ T6 \/ T61 \/ T6511<br \/>\n<strong>\u041f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438:<\/strong> CNC machining \/ forging \/ cutting \/ surface finishing<br \/>\n<strong>\u0414\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u044b \u043f\u043e \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0443:<\/strong> \u041a \u043a\u0430\u0436\u0434\u043e\u043c\u0443 \u0437\u0430\u043a\u0430\u0437\u0443 \u043f\u0440\u0438\u043b\u0430\u0433\u0430\u0435\u0442\u0441\u044f \u043e\u0442\u0447\u0435\u0442 MTC; \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u044b \u0438\u0441\u043f\u044b\u0442\u0430\u043d\u0438\u0439 SGS \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0442\u0441\u044f \u043f\u043e \u0437\u0430\u043f\u0440\u043e\u0441\u0443<\/p>","protected":false},"featured_media":8073,"template":"","meta":{"_seopress_titles_title":"2618 Aluminum Alloy \u2014 Sheet, Plate, Bar, Tube & Forging Stock Supplier | Linsy Aluminum","_seopress_titles_desc":"Source 2618 aluminum alloy (AlCu2Mg1.5Ni) sheet, plate, bar, tube & forging stock in O, T61, T6511 tempers. High-temperature aerospace alloy up to 250\u00b0C. ISO 9001 certified. Custom sizes, CNC machining, MTC with every order. 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